Lubricating compound



Patented Mar, 27, 1923.

Lat-$79 SAMUEL A. BULLOCK, OF NEW YORK, N. Y., ASSIGNOR TO ALLY COMPANY, INC., OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

LUBRICATING COMPOUND.

No Drawing.

To all whom it may concern:

Be it known that I, SAMUEL A. BULLOCK, of the city, county, and State of New York, have invented a certain new and useful Lubricating Compound, of which improvement the following is'a. specification.

The object of my invention is the production of a. lubricating compound to be applied to tools for cutting metals, particularly those used for tapping stay bolt holes in locomotive and other steam boilers, which shall be of proper consistency to adhere to the tool without waste of material, and which will, in service, facilitate high cutting speed, by lubricating the cutting edge of the tool, and quickly radiating the heat therefrom.

The improvement claimed is hereinafter fully set forth.

My compound consists of a mixture of What is known in the trade as soluble oil, viz, a homogeneous mixture, in liquid form, of soluble alkali soap and mineral oil, or mineral oil componded with rosin or suitable fixed oils, or other oil having the similar capacity of holding a filler in suspension; at filler, as talc, soapstone, chalk. graphite, or powdered coal; an alkali, as soda ash, and water, forming a soluble soap.

In preparing the compound, I prefer to use the ingredients in about the following proportions, viz: soluble oil, 58.2 per cent; a filler of pulverized lubricating material, preferably talc, 38.8 per cent; alkali, preferably soda ash, which has been passed through a No. 20 mesh screen, 1.8 per cent; and water, 1.2 per cent. The soluble oil and alkali are mixed and stirred thoroughly, the filler added, again stirring thor- Application filed April 9, 1920. Serial No. 372,462.

oughly, and the water finally added, the mixture forming a. cutting and cleaning compound, of such consistency as to enable it to be applied by a brush, hose, or paddle, to the cutting tool, and to adhere thereto without undue loss of material.

The proportions of the ingredients may be varied as well as the sequence of mixing them, and a suitable antiseptic liquid many varieties of which are, well known in the trade may, if desired. be added, to enable the compound to be used as a toilet soap. or for removing grease or other foreign matter from the surfaces of metal or other materials.

My compound has been. found in practice to be very efficient in the operation of tap ping stay bolt holes in steam boilers, promoting this operation in cleansing the surfaces of the plates and preventing the deposit of injurious or non-conducting material, and rapidly carrying off the heat from the tap, while lubricating its cutting edge.

I claim as my invention and desire to secure by Letters Patent:

1. A' compound, adapted for application in the lubrication of metal cutting tools. comprising about 58.2 per cent soluble oil: 38.8 per cent pulverized talc; 1.8 per cent soda ash; and 1.2 per cent Water.

2. A compound for lubricating metal cutting tools comprising soluble oil; a filler of talc; soda ash; and Water.

SAMUEL A. BULLOCK.

WitneSes:

J. SNOWDEN BELL, GEORGE E. BROWN. 

